Decades of on farm red clover (Trifolium pratense L.) seed production led to numerous, well adapted, persistent red clover accessions, commonly referred to as Mattenklee landraces. Although not used any more in present day agriculture, seed lots of approximately 100 old landraces are still available. So far, there was no information on the genetic variability of these potentially valuable Mattenklee landraces. By means of genetic markers (AFLP) we were able to show that the Mattenklee landraces form a genetically distinct group and can be clearly separated from red clover cultivars. The large diversity of Mattenklee landraces shows their value for red clover breeding as well as for the preservation of biodiversity. The eight genetically characterised landraces were subdivided into three distinct groups. Analysis based on morphological characters confirmed the large diversity among Mattenklee landraces. Furthermore, the assessment of agronomic parameters emphasised their value for red clover breeding. The information on genetic diversity presented here allows for a more efficient conservation and utilisation of Mattenklee landraces.
Tuta absoluta is one of the most destructive pests of solanaceous crops. Agroscope has developed a statistical model to study the population dynamics of the pest and its parasitoids and allows interventions to be optimally planned.
Swiss vineyards are often small and arranged in a mosaic of separate plots and management practices. Therefore, it can be assumed that spray drift from conventional to organic vineyards occurs regularly. Nevertheless, no pesticide residues are detected in most organic wines.
Nay M.M., Grieder C., Frey L.A., Amdahl H., Radovic J., Jaluvka L., Palmé A., Skøt L., Ruttink T., Kölliker R.
Red clover is one of the most important legumes in European forage production. In a multi-year field trial, researchers tested Europe’s largest collection of different red clover accessions at five European locations.